Sound deadening device



J. J. KOCHER SOUND DEADENING DEYICE Aug. 23, 1932.

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i'j for use in iioor construction which may be conveniently andcompletely manufactured '-to avoid assembly on the job, to provideattaching means which ma ,l Re. 18,573

PATEN'n OFFICE JACQUES JEAN ROCHER, OIF CHICAGO, ILLINOIS .SOUN'DDEADENIN'G DEVICE mmm No. 1,745,171, ma January as, 1930, semi 11.318,789, mea November 12, 192s. application for reissue nled October 3,1930. Serial No. 486,258. l

The main objects of this invention are tok provide an improved sounddeadening device be conveniently mounted on a strip ofvi rationinsulating 19 material such as felt, and permanently secured theretobefore installation in that position in which it is ultimately used in aiioor construction, and to provide integral clips on a device of theclass described formed to .15. allow insertion through slits in a feltmember and to prevent separation of the latter from the device.

vAnother object of my invention is to provide means for confining asound deadening l0 member in a fixed location between the superimposedlayers of iiooring in such a manner as to minimize the amount of rigidconnection between said layers.

In the accompanying drawing I have shown an embodiment of my inventionin which:

Fig. 1 is a fragmentary perspective of av proved sound vibrationinsulating means comprising a strip of felt having improved strapspermanently mounted thereon, for installation between a finish layer anda furring strip of a Hoor. The attaching member comprises a strap havingopposite feet portions substantially in the same plane, and a topsection in a spaced. substantially par'- allel plane. connected b vinclined side portions. Clips integral at one end with the top sectionare cut out of the latter and bent downwardly substantiallvperpendicular to the top section. The free end portions of the clips areformed to provide a flange which is substantially parallel to the topsection.

In the form shown in the drawing, sound The feet and top sections are`Tresisting layers 1, preferably comprising felt,

are located between a 'rough layer of the floor 2 and a furring strip 3supported thereon. Ther finish or top layer 4 of the floor is supportedin* turn by the furring strip 3 ast lshown in Fig. 3.

My improved sound deadening means comprising al felt strip 5, is locatedbetween the top 'layer 4 of the iioor and the furring strip 3 and isfirmly clamped on the top of the furft ring strip by a strap 6. Thestrap 6 is provided with feet portions`7 which engage the upper surfaceof the felt member l, and thus avoid a direct rigid connection betweenup er and lower layers of the floor.v

uring the construction of a iioor Suchas is shown in the drawing, it is`desirable to have all the elements required, arrive on the scene ofconstruction in as complete a condi the l tion as'possible in order thattime and labo may be saved on the job. For this reason it has been foundpractical to permanently and securely attach the straps 6 to the feltstrip 5 at the factory or plant where the materials are prepared forassembling. The strips 5C@ ma be made of any desired length and cut to tthe size of the viioor under construction, either before delivery to thescene of construction, or thereafter.

Clips 8 are formed on the top section 93e of the straps by cuttin outspaced portions thereof and bending t e same downwardly as shown in Fig.1, allowing one edge of the clip to remain integral with the top section9. y The bottom portions of the clips are providedf 9 with the flange 10which is substantlallyparallel to the top sections 9, as shown in Fig.2. rThe straps may be conveniently secured to the felt. strip 5 byinserting the clips 7 through slits in the felt member so as to en e-.

gage the flange l0 against the lower surface of the felt member asviewed in the drawing.

Any desired number vof straps may be similarly mounted on' the feltmember and when y the latter is positioned over a'furring strip, thestraps together with the felt member may be held permanently in place bydriving nails through apertures in the feet of the strap and through thefelt 'layer or layers 1 into the bottom layer of the door 2.

